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(11) | EP 0 640 481 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Ink jet print head |
(57) A liquid droplet ejection device, which includes a number of liquid ejection nozzles
(32), a liquid supply layer (20) including porous material, with the liquid supply
layer featuring holes (22) related to the nozzles, and a number of transducers (14)
related to the holes for ejecting liquid droplets out through the nozzles (32). |